Disgraceful, pathetic, infuriating non-service

On 15 Nov 22, I upgraded from streaming only to a dstv decoder. I called the call center and the agent confirmed that he had deactived my streaming service and activated my decoder subscription. End of the month I go cut off and on investigation, the switch over had not been done.. I have made around 12 phone calls to their call centres lasting over 4hours in total. My issue has not been resolved. They keep promising to call me back to sort it out but no calls and nothing is resolved. This is the most pathetic service I have ever had